The ERA key to the U.S.P. : a complete list of the drugs and preparations of the United States Pharmacopœia revision of 1890-3.

ERA key to the U.S.P. (Online)

The Era Key to the U.S.P: A Complete List of the Drugs and Preparations of the United States Pharmacopoeia, Revision of 1890-3: Giving Official Titles, Common Names and Synonyms of the Drugs, Chemicals and Preparations of the Pharmacopoeia, With Doses in

Detroit, Mich. : D. O. Haynes & Co., Publishers, 1893